Home / 8,639.14-12,958.91-3,092.87

Finding the Fourth Proportional to 8,639.14, 12,958.91 and 3,092.87

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Solution

The fourth proportional to 8,639.14, 12,958.91 and 3,092.87 is: 4,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.14 : 12,958.91 = 3,092.87 : x
  2. Step 2: Convert to fraction form
    8,639.14/12,958.91 = 3,092.87/x
  3. Step 3: Cross multiply
    8,639.14x = 12,958.91 × 3,092.87
  4. Step 4: Simplify right side
    8,639.14x = 40,080,159.18
  5. Step 5: Solve for x
    x = 40,080,159.18/8,639.14
  6. Step 6: Final answer
    x = 4,639.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.